/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package jaeger

import "mosn.io/mosn/pkg/protocol/http"

// HTTPHeadersCarrier
type HTTPHeadersCarrier http.RequestHeader

// ForeachKey conforms to the HTTPHeadersCarrier interface.
func (c HTTPHeadersCarrier) ForeachKey(handler func(key, val string) error) error {
	h := http.RequestHeader(c)

	stopped := false
	h.VisitAll(func(key, value []byte) {
		if stopped {
			return
		}

		if handler(string(key), string(value)) != nil {
			stopped = true
		}
	})
	return nil
}
